RETRACTED: Metal-organic framework-based nanostructured catalysts: Applications in biomass conversion

Liu, Yu; Wu, Yingji; Liu, Kouqi; Delbari, Seyed Ali; Kim, Ae-Jung; Namini, Abbas Sabahi; Le, Quyet Van; Shokouhimehr, Mohammadreza; Xia, Changlei; Jang, Ho Won; Varma, Rajender S.; Luque, Rafael

doi:10.1016/j.fuel.2023.127482

Cited by 20 publications

(11 citation statements)

References 50 publications

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“…Within this group, mesoporous materials are attractive because they offer a solid support, protection and selectivity to the catalytic sites [16] . On the other hand, MOFs research on catalysis is gaining momentum given their versatile multiple chemical composition and combination with functional groups [17] . Finally, the study of NPs is extended and comprises metallic ones with different shapes and sizes, and used as part of several matrixes (in suspension, included in core‐shell structures, supported in mesoporous frameworks, supported onto plane substrates) [3,18] …”

Section: Discussion Of Recent Literaturementioning

confidence: 99%

“…[16] On the other hand, MOFs research on catalysis is gaining momentum given their versatile multiple chemical composition and combination with functional groups. [17] Finally, the study of NPs is extended and comprises metallic ones with different shapes and sizes, and used as part of several matrixes (in suspension, included in core-shell structures, supported in mesoporous frameworks, supported onto plane substrates). [3,18] In the cases mentioned above, in addition to their chemical composition, the dimensions and geometry of the catalysts are critical to their performance.…”

Section: Ex Situ Experimentsmentioning

confidence: 99%

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Small Angle Scattering Techniques for the Study of Catalysts and Catalytic Processes

et al. 2023

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Small‐Angle Scattering (SAS) techniques are essential tools for the characterization of catalysts before, during and after catalytic reactions. Either based on X‐Rays (SAXS) or neutrons (SANS), they provide unique structural information that helps to understand catalytic processes at the nanoscale level, allowing a rational improvement of the catalysts design. In this review, we present the key aspects involved in the use of these techniques in the catalysis field. Firstly, we introduce some of the fundamentals of the techniques and describe their main features and their impact in the catalyst design. Then, we analyze key examples of the use of SAS to study catalysts’ structure through ex situ analysis, focusing on examples involving different porous materials and metallic nanoparticles. Afterwards, we discuss in situ and operando approaches for studying catalytical processes monitored using SAS. Finally, we present perspectives and challenges for the future use of SAS in the catalysis field.

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Section: Discussion Of Recent Literaturementioning

confidence: 99%

Section: Ex Situ Experimentsmentioning

confidence: 99%

Small Angle Scattering Techniques for the Study of Catalysts and Catalytic Processes

et al. 2023

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“…By electing proper organic linkers, metal ions, or by adjusting the process parameters such as temperature, reaction time, ratio of metal ions and organic linkers, etc., the porosity of MOFs can be adjusted which can increase the accessibility of active sites and can promote the diffusion of molecules originating from biomass [58,59,79,90] . Because of their adjustable physicochemical characteristics, MOFs and MOF‐based materials can be used for a diverse range of catalytic biomass conversion reactions, for example, oxidation, dehydration, isomerization, hydrolysis, hydrogenation, esterification, etc [60,91–93] …”

Section: Metal‐organic‐framework (Mof)‐based Catalysts For Biomass Co...mentioning

confidence: 99%

“…Various approaches including ultrasonic, solvothermal, hydrothermal, microwave, electrochemical, and mechanochemical syntheses have been employed for MOFs synthesis. [66,[93][94][95] Synthesis approaches have a significant impact on MOFs characteristics, reaction time, and MOFs yield. For instance, the microwave-assisted technique typically operates at low temperatures and requires a short reaction time.…”

Section: Mofs Synthesis Approachesmentioning

confidence: 99%

“…[58,59,79,90] Because of their adjustable physicochemical characteristics, MOFs and MOF-based materials can be used for a diverse range of catalytic biomass conversion reactions, for example, oxidation, dehydration, isomerization, hydrolysis, hydrogenation, esterification, etc. [60,[91][92][93]…”

Section: Metal-organic-framework (Mof)-based Catalysts For Biomass Co...mentioning

confidence: 99%

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Current Status and Challenges for Metal‐Organic‐Framework‐Assisted Conversion of Biomass into Value‐Added Chemicals

Srivastava,

Lappalainen,

Rusanen

et al. 2023

ChemPlusChem

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Owing to the abundance of availability, low cost, and environmental‐friendliness, biomass waste could serve as a prospective renewable source for value‐added chemicals. Nevertheless, biomass conversion into chemicals is quite challenging due to the heterogeneous nature of biomass waste. Biomass‐derived chemicals are appealing sustainable solutions that can reduce the dependency on existing petroleum‐based production. Metal‐organic frameworks (MOFs)‐based catalysts and their composite materials have attracted considerable amounts of interest in biomass conversion applications recently because of their interesting physical and chemical characteristics. Due to their tunability, the catalytic activity and selectivity of MOF‐based catalyst/composite materials can be tailored by functionalizing them with a variety of functional groups to enhance biomass conversion efficiency. This review focuses on the catalytic transformation of lignocellulosic biomass into value‐added chemicals by employing MOF‐based catalyst/composite materials. The main focus is given to the production of the platform chemicals HMF and Furfural from the corresponding (hemi)cellulosic biomass, due to their versatility as intermediates for the production of various biobased chemicals and fuels. The effects of different experimental parameters on the conversion of biomass by MOF‐based catalysts are also included. Finally, current challenges and perspectives of biomass conversion into chemicals by MOF‐based catalysts are highlighted.

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Metal Organic Frameworks Derived Catalysts for the Upgrading of Platform Chemicals

Zhao,

Du,

Hou

2023

ChemCatChem

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Biomass plays a significant role in replacing fossil resources, and catalytic transformation of platform chemicals to high‐value chemicals is an effective approach to maximize the utilization of biomass. Among of which, efficient and durable catalysts are the heart for upgrading of these platform chemicals, and metal–organic frameworks (MOFs)‐derived catalysts have attracted much attentions due to their suitable and versatile physicochemical properties. In this work, we present a short review on the applications of MOFs‐derived catalysts in upgrading of platform chemicals. The design and synthetic strategies of MOFs‐derived catalysts were summarized in detail, and their application in the catalytic upgrading of glycerol, ethanol, furanic compounds, levulinic acid and vanillin were addressed. The final section outlines the potential industrial applications of MOFs‐derived catalysts for upgrading platform chemicals.

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RETRACTED: Metal-organic framework-based nanostructured catalysts: Applications in biomass conversion

Cited by 20 publications

References 50 publications

Small Angle Scattering Techniques for the Study of Catalysts and Catalytic Processes

Small Angle Scattering Techniques for the Study of Catalysts and Catalytic Processes

Current Status and Challenges for Metal‐Organic‐Framework‐Assisted Conversion of Biomass into Value‐Added Chemicals

Metal Organic Frameworks Derived Catalysts for the Upgrading of Platform Chemicals

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